PC Harper, who died in the line of duty near Sulhamstead in 2019, was dragged to his death behind a getaway car. Kit Malthouse has backed calls to block the early release of PC Andrew Harper’s killers. A petition calling for PC Harper's killers to be excluded from early release, launched by Thames Valley Police Federation chair Aileen O’Connor, has now surpassed half a million signatures. "So it is a bitter thing to watch two of the men responsible for Andrew’s death now placed in line for early release. "More than half a million people have signed the petition calling for Andrew’s killers to be excluded from early release, and Andrew’s widow Lissie has asked people to sign and share it.